Originally posted by ragde I got my 55-300 with the sale price and it looks new. However, I find that the zoom ring is too stiff and as a result I need to hold the camera too tightly to avoid movement when pointing to a subject; I feel that can't be right. The focus ring in contrast is much looser; however, specially more in one direction than the other, it gives a bit the feeling (sound) of friction against sand trapped in there. I have the 18-135 and its zoom ring is softer and I don't have to hold the camera so tightly to avoid movement while zooming; its focus ring feels very comparable to its zoom ring (with no feeling of sand trapped in there). That is, both rings in the 18-135 feel about the same and in between what I experience with the zoom and focus rings in the new 55-300. The rings in the 18-135 feel normal to me and in comparison those in the 55-300 feel abnormal (zoom is too stiff and focus too loose and sandy). I have made only a couple of test shots, and the 55-300 seems normal otherwise. Even if I decided to live with the stiffness of the zoom ring, the "sandy" focus ring worries me. I'd like to hear from other owners ... Thanks.
It is difficult to compare without having both in hand.. but my copy of the HD 55-300 WR seems to do something similar -- the zoom ring is stiffer than the focus ring (which is pretty light). Not exactly sure the sound you're hearing but mine also makes a sound too... not, to me, like sand crunching but more of a 'whir' sound as I manually operate the zoom ring. the focus ring makes a faint, mechanical click sound as I turn it slowly.
On my copy of the 18-135 WR, the zoom ring is a little bit looser/lighter than on my 55-300.
That said, it is a telephoto WR lens, so maybe the tolerances are tighter?